Plus $50 after 4/30/16 Each August, hundreds of thousands of people flock to Central Illinois to experience Decatur Celebration, the Midwest's most exciting family street festival. The massive 3-day event blankets the downtown business district with 10 show stages, 3 blocks of Arts and Crafters, spectacular carnival rides, Razzle Dazzle Goodtimes Parade and over 60 unique food items. At Decatur Celebration, there's something exciting around every corner.